# GIRH Chronic Obstructive Pulmonary Disease Observational Study

> **NCT03893409** · — · UNKNOWN · sponsor: **zili zhang** · enrollment: 10000 (estimated)

## Conditions studied

- Chronic Obstructive Pulmonary Disease

## Interventions

- **OTHER:** 

## Key facts

- **NCT ID:** NCT03893409
- **Lead sponsor:** zili zhang
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2018-08-10
- **Primary completion:** 2020-12-30
- **Final completion:** 2022-12-30
- **Target enrollment:** 10000 (ESTIMATED)
- **Last updated:** 2019-03-28


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03893409

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03893409, "GIRH Chronic Obstructive Pulmonary Disease Observational Study". Retrieved via AI Analytics 2026-06-23 from https://api.ai-analytics.org/clinical/NCT03893409. Licensed CC0.

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